Finding the Third Proportional to 645,322.50 and 1,332,076.50

Step by Step Solution

1. Step 1: Write the proportion equation
   645,322.50 : 1,332,076.50 = 1,332,076.50 : x
2. Step 2: Convert to fraction form
   645,322.50/1,332,076.50 = 1,332,076.50/x
3. Step 3: Cross multiply
   645,322.50x = 1,332,076.50 × 1,332,076.50
4. Step 4: Simplify right side
   645,322.50x = 1,774,427,801,852.25
5. Step 5: Solve for x
   x = 1,774,427,801,852.25/645,322.50
6. Step 6: Final answer
   x = 2,749,676.02